Display panel or portion thereof with a transitional graphical user interface



FIG. 1 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a first image in the sequence of the first embodiment;

FIG. 2 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a second image in the sequence of the first embodiment;

FIG. 3 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a third image in the sequence of the first embodiment;

FIG. 4 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a fourth image in the sequence of the first embodiment;

FIG. 5 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a fifth image in the sequence of the first embodiment;

FIG. 6 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a sixth image in the sequence of the first embodiment;

FIG. 7 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a seventh image in the sequence of the first embodiment;

FIG. 8 is a front view of a display panel or portion thereof with a transitional graphical user interface showing an eighth image in the sequence of the first embodiment;

FIG. 9 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a ninth image in the sequence of the first embodiment;

FIG. 10 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a tenth image in the sequence of the first embodiment;

FIG. 11 is a front view of a display panel or portion thereof with a transitional graphical user interface showing an eleventh image in the sequence of the first embodiment;

FIG. 12 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a twelfth image in the sequence of the first embodiment;

FIG. 13 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a thirteenth image in the sequence of the first embodiment;

FIG. 14 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a first image in the sequence of the second embodiment;

FIG. 15 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a second image in the sequence of the second embodiment;

FIG. 16 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a third image in the sequence of the second embodiment;

FIG. 17 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a fourth image in the sequence of the second embodiment;

FIG. 18 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a fifth image in the sequence of the second embodiment;

FIG. 19 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a sixth image in the sequence of the second embodiment;

FIG. 20 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a seventh image in the sequence of the second embodiment;

FIG. 21 is a front view of a display panel or portion thereof with a transitional graphical user interface showing an eighth image in the sequence of the second embodiment;

FIG. 22 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a ninth image in the sequence of the second embodiment;

FIG. 23 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a tenth image in the sequence of the second embodiment;

FIG. 24 is a front view of a display panel or portion thereof with a transitional graphical user interface showing an eleventh image in a sequence of the second embodiment;

FIG. 25 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a twelfth image in a sequence of the second embodiment; and,

FIG. 26 is a front view of a display panel or portion thereof with a transitional graphical user interface showing a thirteenth image in the sequence of the second embodiment.

The broken lines depicting a display panel or portion thereof are included for the purpose of illustrating environmental structure and form no part of the claimed design. The broken lines depicting portions of a graphical user interface are included for illustrating environmental aspects of a display panel or portion thereof with a transitional graphical user interface and form no part of the claimed design. 

CLAIM The ornamental design for a display panel or portion thereof with a transitional graphical user interface, as shown and described. 